**YAG Laser Peripheral Iridotomy (PI)** is a life-changing, non-surgical procedure used primarily to treat or prevent a potentially blinding condition known as **Angle-Closure Glaucoma**. This type of glaucoma occurs when the iris (the colored part of the eye) blocks the drainage angle, causing a sudden and dangerous spike in **Intraocular Pressure (IOP)**.
The YAG laser creates a tiny, controlled opening in the outer edge of the iris. This opening acts as a "pressure vent," ensuring that fluid (aqueous humor) can circulate properly and reach the drainage channels, thus relieving pressure and preventing acute attacks.
The primary use is preventive care for individuals diagnosed with narrow-angles, stopping future acute attacks.
Creates a permanent, open channel for fluid circulation, ensuring the iris stays away from the drainage angle.
The entire procedure is conducted in the clinic, typically taking less than 10 minutes per eye.
An effective method to rapidly lower high intraocular pressure during an acute angle-closure crisis.